How to Install Zimbra 8.6 on Ubuntu 14.04 Server

The Zimbra Collaboration Server is a mail server, collaborative web application and a web based mail server admin console in a single application. It provides LDAP, antivirus, antispam, collaboration features and a ajax webmail client. Zimbra is easy to use for administrators as well as end users due to its fast Ajax based web interface.

At this step, zimbra will check the required packages and will ask you to agree to their installation.
Agreement Zimbra

and then choose the zimbra package :
Choose Zimbra Installation
here doesn`t need zimbra-dnscache, because in this tutorial use dnsmasq.
You need to wait, because this installation takes some time.
next step is configure “zimbra-store” for getting admin password. See the picture:
Configure Admin Pasword
Choose number “4” and enter. and then type your password:
Changing Password
Apply all Configuration:
Apply all configuration

Zimbra is an Open Source mail server application which provides many features and is easy to use for admin and client. Zimbra requires a lot of server ressources, so dont use it on servers that do not match the base requirements.